2 
PAGU 
Development = GOlo : — 
Ovum, oogenesis 
. . 
. . 
. . 50 
Spermatozoon, spermatogenesis. . 
. . 
. . 
. . 50 
Embryology . . . . . . 
. . 
. . 
. . 50 
Post-embryonal . . 
.. 50 
Ethology = 0019: — 
General 
. . 51 
Habits (oF species) 
. . 51 
Habits (special) 
. . 52 
Parental . . 
. . 52 
Sexual 
. . 52 
Voice 
. . 52 
Psycholog}' 
. . 52 
Coloration 
.. 52 
Variation and Aetiology = 0023 : — 
Variation . . 
52 
Teratology 
53 
Heredity . . 
53 
Crosses, Breeds, Hybrids 
53 
Evolution . 
53 
Geography == 0027 : — 
General 
54 
Europe = d and da to dk 
54 
Europe and Mediterranean islands d . . 
54 
Scandinavia, etc. da . . . . . . 
54 
Russia euro pea db 
54 
German empire dc 
54 
Belgium, etc. dd . . . . 
54 
British islands de 
54 
Prance df 
55 
Spain dg 
• 55 
Italy dh 
55 
Switzerland di . . 
55 
Austria Hungary dk . . 
55 
Balkan Peninsula dl 
50 
Islands of Mediterranean dm . . 
50 
Baltic islands do 
50 
Asia — e . . 
56 
Asiatic Russia ea 
56 
China, etc. eb . . 
56 
Japan, etc. ec . . 
56 
Cochin China, etc. ed . . 
56 
British India ef. . 
56 
Malay, etc. eg . . 
57 
Persia, eh 
57 
Arabia, Asiatic Turkey ei 
57 
